MAX3693ECJ

Serializers, Deserializers Overview

The MAX3693ECJ is a +3.3V, 622Mbps SDH/SONET 4:1 serializer with clock synthesis and LVDS inputs. It converts 4-bit-wide, 155Mbps parallel data to 622Mbps serial data. Operating from a single +3.3V supply, it accepts low-voltage differential-signal (LVDS) clock and data inputs for interfacing with high-speed digital circuitry, and delivers a 3.3V PECL serial-data output. A fully integrated PLL synthesizes an internal 622Mbps serial clock from a 155.52MHz, 77.76MHz, 51.84MHz, or 38.88MHz reference clock. The device operates in the extended temperature range (-40°C to +85°C) and is available in a 32-pin TQFP package.

Serializers, Deserializers Feature Summary

• Converts 4-bit-wide, 155Mbps parallel data to 622Mbps serial data
• Integrates a PLL synthesizing an internal 622Mbps serial clock from multiple reference frequencies
• Features LVDS parallel clock and data inputs for high-speed digital interfacing
• Delivers a differential 3.3V PECL serial-data output

Serializers, Deserializers Applications

• 622Mbps SDH/SONET Transmission Systems
• 622Mbps ATM/SONET Access Nodes
• Add/Drop Multiplexers
• Digital Cross Connects

Serializers, Deserializers Procurement Notes

Verify the component against official Maxim Integrated datasheets to confirm pinout compatibility and electrical specifications before integration. Ensure that the operating voltage remains within the specified +3V to +3.6V range and that the thermal environment stays within the -40°C to +85°C operational limits. Confirm that the required termination resistors are correctly applied to the LVDS and PECL interfaces as detailed in the application circuits.

Serializers, Deserializers Selection Notes

Select this serializer when a 4:1 parallel-to-serial conversion at 622Mbps is required for SDH/SONET applications. It is suitable for systems needing integrated clock synthesis from standard reference frequencies like 155.52MHz or 77.76MHz. Consider its LVDS input capability for noise immunity and low-power operation in high-speed digital environments. Ensure the design supports the necessary PECL output termination and timing constraints defined by the PCLKO-to-PCLKI skew window.

Serializers, Deserializers Part Context

The MAX3693ECJ belongs to the MAX3693 family of serializers designed for telecommunications infrastructure. It is specifically engineered for SDH/SONET and ATM applications requiring reliable high-speed data serialization. The device integrates essential functions like PLL synthesis and LVDS buffering, reducing the need for external components. Its 32-pin TQFP package facilitates surface-mount assembly in compact electronic designs.

Serializers, Deserializers Replacement Considerations

Check for lead-free variants such as the MAX3693ECJ+ which offer identical functionality but comply with RoHS standards. Verify if alternative serializers from the same manufacturer support similar clock synthesis features and interface types.